Please use this identifier to cite or link to this item: https://www.arca.fiocruz.br/handle/icict/16550
Title: Occurrence and antimicrobial resistance patterns of Listeria monocytogenes isolated from vegetables
Authors: Byrne, Vanessa de Vasconcelos
Hofer, Ernesto
Vallim, Deyse Christina
Almeida, Rogeria Comastri de Castro
Affilliation: Universidade Federal da Bahia. Faculdade de Farmácia. Salvador, BA, Brasil.
Fundação Oswaldo Cruz, Instituto Oswaldo Cruz. Laboratório de Zoonoses Bacterianas. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz, Instituto Oswaldo Cruz. Laboratório de Zoonoses Bacterianas. Rio de Janeiro, RJ, Brasil.
Universidade Federal da Bahia. Escola de Nutrição. Salvador, BA, Brasil.
Abstract: Although the consumption of fresh and minimally processed vegetables is considered healthy, outbreaks related to the contamination of these products are frequently reported. Among the food-borne pathogens that contaminate vegetables is Listeria monocytogenes, a ubiquitous organism that exhibits the ability to survive and multiply at refrigerated temperatures. This study aimed to evaluate the occurrence of L. monocytogenes in vegetables as well as the antimicrobial resistance of isolates. The results showed that 3.03% of samples were contaminated with L. monocytogenes, comprising 2.22% of raw vegetables and 5.56% of ready-to-eat vegetables. Multiplex PCR confirmed the virulence potential of the isolates. Antimicrobial resistance profiling showed that 50% of the isolates were susceptible to the antibiotics used. The resistance of one isolate to penicillin G, a commonly employed therapeutic agent, and the presence of serotype 4b, a serotype commonly associated with food-borne outbreaks, could be potential health hazards for consumers.
Keywords: Vegetables
Food safety
Antimicrobial resistance
Listeria monocytogenes
keywords: Vegetais
Segurança alimentar
Resistência antimicrobiana
Listeria monocytogenes
Issue Date: 2016
Publisher: Sociedade Brasileira de Microbiologia
Citation: BYRNE, Vanessa de Vasconcelos; et al. Occurrence and antimicrobial resistance patterns of Listeria monocytogenes isolated from vegetables. Brazilian Journal of Microbiology, v.47, p.438-443, 2016.
DOI: 10.1016/j.bjm.2015.11.033
ISSN: 1517-8382
Copyright: open access
Appears in Collections:IOC - Artigos de Periódicos

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